LOINC display name : Metanephrine.free and Normetanephrine.free and 3-Methoxytyramine.free panel;
LOINC long common name : Metanephrine.free and Normetanephrine.free and 3-Methoxytyramine.free panel - Serum
or Plasma;
LOINC short name : Free MN, NMN and 3-MT SerPl;
LOINC description : Measurement of O-methylated catecholamine metabolites (MNs), including free metanephrine
(MN), free normetanephrine (NMN) and free 3-methoxytyramine (3-MT), levels in serum
or plasma is performed for the biochemical diagnosis of pheochromocytoma.[PMID:17712005]
Additionally, concentrations of MNs are strongly correlated with tumor size.[PMID:
11041903];